O’Reilly AlphaTech Ventures (OATV), the corporate venturing unit of O’Reilly Media, is planning to begin marketing its third fund this Autumn with a target of $75m, according to news provider Fortune.

The fund aims higher than previous funds. In 2010, the firm closed its second fund, OATV II, at $59.25m, and raised $51m for its first fund in 2007.

OATV’s portfolio includes web link shortening service Bitly and social media platform Foursquare. Exited deals include travel planner app TripIt for…